Stereotype printing-plate.



' H. A. w. WOOD.

STEREOTYPE PRINTING PLATE.

APPLICATION FILED ocT.24. 1913.

1,150,474. Patented Aug. 17, 1915.

SMWSa-M,

HENRY A. WISE WOOD, OF NEW YORK, N. Y., ASSIGNOR, BY MESN E ASSIGNMENTS, TO

WOOD NEWSPAPER MACHINERY CORPORATION, OF NEW YORK, N. Y., A CORPORA- TION 0F VIRGINIA.

Specification of Letters Patent.

STEREOTYPE PRINTING-PLATE.

Patented Aug. 17, 1915.

application filed October 24,

1913.. Serial No. 796,998.

To all whom it may concern:

Be it known that I, HENRY A. WISE WOOD, a citizen of the United States, residing at New York, in the county of New York and State of New York, have invented a new and useful Stereotype Printing-Plate, of which the following is a specification.

This invention relates to a curved stereo- August 9th, 1906, of the latter of which this is a division.

Reference is to be had to the accompanying drawings in Which Figure 1 is a plan of a portion of a machine on which plates constructed in accordance with this invention can be finished and cooled. Fig. 2 is a transverse sectional View of the same on the line 22 of Fig. 1. Fig. 3 is a sectional View on the line 33 of Fig. 1. Fig. 4 is a sectional view on the line 4t of Fig. l, and Fig. 5 is a longitudinal sectional view of the plate itself.

The plate 9 is shown as beingsupported on a plate finishing machine comprising a frame having an inclined body or runway a for carrying the plates. The plates are intended to move by gravity down the runway supported by a series of rollers 20. They are controlled as described in the sec- 0nd one of my above mentioned applications by a reciprocating bar or gate 21 arranged across the tablea'. The operation of this need not be described but it is sufiicient to say that it is provided with stops 24 thereon adapted to come in front of the edges of the plate 9 and stop it in one position of the stop. The stop is then moved by a cam 27 to bring the stops 24 out of alinement with the edges of the plate and allow the plate to move down the incline supported as it is on the rollers 20. VVhlle passing down the incline the bottom edges of the plate are trimmed off by rotary saws b as shown in Fig. 3. This provides the straight edges of the plate with a double bevel 9 so that it can rest on the rollers 20 above the finishing arch and also on the rollers 20 in the shaving arch as shown in Fig. 4 without marring the edges of the plate. For the purpose of constructing the plate to cooperate perfectly with this machine it is provided with a smooth surface 29 along the two inner longitudinal edges. This surface is made smooth by stopping the circumferential ribs 30 at a short distance from these edges. This serves two purposes. First, it permits the plate to be guided by the rollers 20 without injuring the outer or type surface; and second, it allows the operation of the gate 21 to prevent the entrance of the plate 9 out of time. This gate is operated to open so as just to let the front end of a plate by. The gate immediately thereafter is thrown against the inner surface of the edge of the plate on one side by its spring 23. Thus, immediately the plate passes the gate, the latter snaps closed behind it. This causes the gate to be opened only at the correct moment so that no plate put in late can get half out of time.

The gate is opened for an instant and if no.

plate is there it closes, but if a plate has been in position and starts to pass on down the incline,.the gate is held open b coming against the smooth inner edge 29 0 one side of the plate and when the plate passes it, it snaps closed behind it.

It is to be understood also that the right hand gate in Fig. 2 is clear of the plate or type surface while the left side gate is bearing against the inner side of the plate. This prevents the rubbing of the type. This gate is shown at the entrance for admitting the plate to the trimming saws b and it is to be understood that the plate continues after it has been trimmed by these saws to pass over the same kind of rollers. The saws trim the plate on its outer edge and also cut ofl' the sharp inner edge which is usually left on the plate. Thus the plate is left with double beveled longitudinal edges g.

The rolls 20 inside the shaving arch on which the plate is supported when being shaved are shown as simple cones unlike the rolls 20. They support the outer inclined bevel of the plate and as the plate, while in the arch, is cooled only in the outer surface, it will not contract inwardly to dislodge it from these rolls.-

Although I have illustrated and described only a single form of the invention I am aware of the fact that modifications can be edge thereof, said straight edge being doumade therein by any person skilled in the ble beveled. art without departing from the scope ofthe 3. A' curved stereotype plate provided invention as expressed in the claims, therewith double beveled straight edges whereby 5 .fore, I do not wish to be limited to all the it can rest on grooved rollers in a gravity 20 details of construction herein shown and deshaving machine without injury to the type scribed, but surface.

What I do claim is In testimony whereof I have hereunto set 1. A curved stereotype plate having inner my hand, in the presence ,of two subscribing 10 circumferential ribs extending to within a witnesses.

short distance of the straight edges of the plate, thereby leaving smooth inner surfaces HENRY W.ISE WOOD' adjacent to said edges. Witnesses:

2. A curved stereotype plate having a B. W. SToEBER,

15 smooth inner surface adjacent to a straight LILLIAN C. JoNns. 

